content: /**
   * Copyright (c) 2016-present, RxJava Contributors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
   * compliance with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under the License is
   * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
   * the License for the specific language governing permissions and limitations under the License.
   */
  
  package io.reactivex.observable.internal.operators;
  
  import java.util.concurrent.atomic.AtomicInteger;
  
  import io.reactivex.common.Disposable;
  import io.reactivex.common.functions.Consumer;
  import io.reactivex.observable.*;
  
  /**
   * Wraps a ConnectableObservable and calls its connect() method once
   * the specified number of Observers have subscribed.
   *
   * @param <T> the value type of the chain
   */
  public final class ObservableAutoConnect<T> extends Observable<T> {
      final ConnectableObservable<? extends T> source;
      final int numberOfObservers;
      final Consumer<? super Disposable> connection;
      final AtomicInteger clients;
  
      public ObservableAutoConnect(ConnectableObservable<? extends T> source,
              int numberOfObservers,
              Consumer<? super Disposable> connection) {
          this.source = source;
          this.numberOfObservers = numberOfObservers;
          this.connection = connection;
          this.clients = new AtomicInteger();
      }
  
      @Override
      public void subscribeActual(Observer<? super T> child) {
          source.subscribe(child);
          if (clients.incrementAndGet() == numberOfObservers) {
              source.connect(connection);
          }
      }
  }
  